1/*-
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
7 * ----------------------------------------------------------------------------
8 */
9
10/*
11 * Driver for Siemens reference design card "Easy321-R1".
12 *
13 * This card contains a FALC54 E1/T1 framer and a MUNICH32X 32-channel HDLC
14 * controller.
15 *
16 * The driver supports E1 mode with up to 31 channels.  We send CRC4 but don't
17 * check it coming in.
18 *
19 * The FALC54 and MUNICH32X have far too many registers and weird modes for
20 * comfort, so I have not bothered typing it all into a "fooreg.h" file,
21 * you will (badly!) need the documentation anyway if you want to mess with
22 * this gadget.
23 */
24
25#include <sys/cdefs.h>
26__FBSDID("$FreeBSD$");
27
28/*
29 * Stuff to describe the MUNIC32X and FALC54 chips.
30 */
31
32#define M32_CHAN	32	/* We have 32 channels */
33#define M32_TS		32	/* We have 32 timeslots */
34
35#define NG_MN_NODE_TYPE	"mn"
36
37#include <sys/param.h>
38#include <sys/kernel.h>
39#include <sys/sysctl.h>
40#include <sys/bus.h>
41#include <sys/mbuf.h>
42#include <sys/systm.h>
43#include <sys/malloc.h>
44
45#include <dev/pci/pcireg.h>
46#include <dev/pci/pcivar.h>
47#include "pci_if.h"
48
49#include <machine/bus.h>
50#include <machine/resource.h>
51
52#include <sys/rman.h>
53
54#include <vm/vm.h>
55#include <vm/pmap.h>
56
57#include <netgraph/ng_message.h>
58#include <netgraph/netgraph.h>
59
60
61static int mn_maxlatency = 1000;
62SYSCTL_INT(_debug, OID_AUTO, mn_maxlatency, CTLFLAG_RW,
63    &mn_maxlatency, 0,
64	"The number of milliseconds a packet is allowed to spend in the output queue.  "
65	"If the output queue is longer than this number of milliseconds when the packet "
66	"arrives for output, the packet will be dropped."
67);
68
69#ifndef NMN
70/* Most machines don't support more than 4 busmaster PCI slots, if even that many */
71#define NMN	4
72#endif
73
74/* From: PEB 20321 data sheet, p187, table 22 */
75struct m32xreg {
76	u_int32_t conf,    cmd,     stat,    imask;
77	u_int32_t fill10,  piqba,   piql,    fill1c;
78	u_int32_t mode1,   mode2,   ccba,    txpoll;
79	u_int32_t tiqba,   tiql,    riqba,   riql;
80	u_int32_t lconf,   lccba,   fill48,  ltran;
81	u_int32_t ltiqba,  ltiql,   lriqba,  lriql;
82	u_int32_t lreg0,   lreg1,   lreg2,   lreg3;
83	u_int32_t lreg4,   lreg5,   lre6,    lstat;
84	u_int32_t gpdir,   gpdata,  gpod,    fill8c;
85	u_int32_t ssccon,  sscbr,   ssctb,   sscrb;
86	u_int32_t ssccse,  sscim,   fillab,  fillac;
87	u_int32_t iomcon1, iomcon2, iomstat, fillbc;
88	u_int32_t iomcit0, iomcit1, iomcir0, iomcir1;
89	u_int32_t iomtmo,  iomrmo,  filld8,  filldc;
90	u_int32_t mbcmd,   mbdata1, mbdata2, mbdata3;
91	u_int32_t mbdata4, mbdata5, mbdata6, mbdata7;
92};
93
94/* From: PEB 2254 data sheet, p80, table 10 */
95struct f54wreg {
96	u_int16_t xfifo;
97	u_int8_t                  cmdr,   mode,   rah1,   rah2,   ral1,   ral2;
98	u_int8_t  ipc,    ccr1,   ccr3,   pre,    rtr1,   rtr2,   rtr3,   rtr4;
99	u_int8_t  ttr1,   ttr2,   ttr3,   ttr4,   imr0,   imr1,   imr2,   imr3;
100	u_int8_t  imr4,   fill19, fmr0,   fmr1,   fmr2,   loop,   xsw,    xsp;
101	u_int8_t  xc0,    xc1,    rc0,    rc1,    xpm0,   xpm1,   xpm2,   tswm;
102	u_int8_t  test1,  idle,   xsa4,   xsa5,   xsa6,   xsa7,   xsa8,   fmr3;
103	u_int8_t  icb1,   icb2,   icb3,   icb4,   lim0,   lim1,   pcd,    pcr;
104	u_int8_t  lim2,   fill39[7];
105	u_int8_t  fill40[8];
106	u_int8_t  fill48[8];
107	u_int8_t  fill50[8];
108	u_int8_t  fill58[8];
109	u_int8_t  dec,    fill61, test2,  fill63[5];
110	u_int8_t  fill68[8];
111	u_int8_t  xs[16];
112};
113
114/* From: PEB 2254 data sheet, p117, table 10 */
115struct f54rreg {
116	u_int16_t rfifo;
117	u_int8_t                  fill2,  mode,   rah1,   rah2,   ral1,   ral2;
118	u_int8_t  ipc,    ccr1,   ccr3,   pre,    rtr1,   rtr2,   rtr3,   rtr4;
119	u_int8_t  ttr1,   ttr2,   ttr3,   ttr4,   imr0,   imr1,   imr2,   imr3;
120	u_int8_t  imr4,   fill19, fmr0,   fmr1,   fmr2,   loop,   xsw,    xsp;
121	u_int8_t  xc0,    xc1,    rc0,    rc1,    xpm0,   xpm1,   xpm2,   tswm;
122	u_int8_t  test,   idle,   xsa4,   xsa5,   xsa6,   xsa7,   xsa8,   fmr13;
123	u_int8_t  icb1,   icb2,   icb3,   icb4,   lim0,   lim1,   pcd,    pcr;
124	u_int8_t  lim2,   fill39[7];
125	u_int8_t  fill40[8];
126	u_int8_t  fill48[4],                      frs0,   frs1,   rsw,    rsp;
127	u_int16_t fec,            cvc,            cec1,           ebc;
128	u_int16_t cec2,           cec3;
129	u_int8_t                                  rsa4,   rsa5,   rsa6,   rsa7;
130	u_int8_t  rsa8,   rsa6s,  tsr0,   tsr1,   sis,    rsis;
131	u_int16_t                                                 rbc;
132	u_int8_t  isr0,   isr1,   isr2,   isr3,   fill6c, fill6d, gis,    vstr;
133	u_int8_t  rs[16];
134};
135
136/* Transmit & receive descriptors */
137struct trxd {
138	u_int32_t	flags;
139	vm_offset_t	next;
140	vm_offset_t	data;
141	u_int32_t	status;	/* only used for receive */
142	struct mbuf	*m;	/* software use only */
143	struct trxd	*vnext;	/* software use only */
144};
145
146/* Channel specification */
147struct cspec {
148	u_int32_t	flags;
149	vm_offset_t	rdesc;
150	vm_offset_t	tdesc;
151	u_int32_t	itbs;
152};
153
154struct m32_mem {
155	vm_offset_t	csa;
156	u_int32_t	ccb;
157	u_int32_t	reserve1[2];
158	u_int32_t	ts[M32_TS];
159	struct cspec	cs[M32_CHAN];
160	vm_offset_t	crxd[M32_CHAN];
161	vm_offset_t	ctxd[M32_CHAN];
162};
163
164struct mn_softc;
165struct sockaddr;
166struct rtentry;
167
168static	int	mn_probe(device_t self);
169static	int	mn_attach(device_t self);
170static	void	mn_create_channel(struct mn_softc *sc, int chan);
171static	int	mn_reset(struct mn_softc *sc);
172static	struct trxd * mn_alloc_desc(void);
173static	void	mn_free_desc(struct trxd *dp);
174static	void	mn_intr(void *xsc);
175static	u_int32_t mn_parse_ts(const char *s, int *nbit);
176#ifdef notyet
177static	void	m32_dump(struct mn_softc *sc);
178static	void	f54_dump(struct mn_softc *sc);
179static	void	mn_fmt_ts(char *p, u_int32_t ts);
180#endif /* notyet */
181static	void	f54_init(struct mn_softc *sc);
182
183static	ng_constructor_t ngmn_constructor;
184static	ng_rcvmsg_t ngmn_rcvmsg;
185static	ng_shutdown_t ngmn_shutdown;
186static	ng_newhook_t ngmn_newhook;
187static	ng_connect_t ngmn_connect;
188static	ng_rcvdata_t ngmn_rcvdata;
189static	ng_disconnect_t ngmn_disconnect;
190
191static struct ng_type mntypestruct = {
192	.version =	NG_ABI_VERSION,
193	.name =		NG_MN_NODE_TYPE,
194	.constructor =	ngmn_constructor,
195	.rcvmsg =	ngmn_rcvmsg,
196	.shutdown =	ngmn_shutdown,
197	.newhook =	ngmn_newhook,
198	.connect =	ngmn_connect,
199	.rcvdata =	ngmn_rcvdata,
200	.disconnect =	ngmn_disconnect,
201};
202
203static MALLOC_DEFINE(M_MN, "mn", "Mx driver related");
204
205#define NIQB	64
206
207struct schan {
208	enum {DOWN, UP} state;
209	struct mn_softc	*sc;
210	int		chan;
211	u_int32_t	ts;
212	char		name[8];
213	struct trxd	*r1, *rl;
214	struct trxd	*x1, *xl;
215	hook_p		hook;
216
217	time_t		last_recv;
218	time_t		last_rxerr;
219	time_t		last_xmit;
220
221	u_long		rx_error;
222
223	u_long		short_error;
224	u_long		crc_error;
225	u_long		dribble_error;
226	u_long		long_error;
227	u_long		abort_error;
228	u_long		overflow_error;
229
230	int		last_error;
231	int		prev_error;
232
233	u_long		tx_pending;
234	u_long		tx_limit;
235};
236
237enum framing {WHOKNOWS, E1, E1U, T1, T1U};
238
239struct mn_softc {
240	int	unit;
241	device_t	dev;
242	struct resource *irq;
243	void *intrhand;
244	enum framing	framing;
245	int 		nhooks;
246	void 		*m0v, *m1v;
247	vm_offset_t	m0p, m1p;
248	struct m32xreg	*m32x;
249	struct f54wreg	*f54w;
250	struct f54rreg	*f54r;
251	struct m32_mem	m32_mem;
252	u_int32_t	tiqb[NIQB];
253	u_int32_t	riqb[NIQB];
254	u_int32_t	piqb[NIQB];
255	u_int32_t	ltiqb[NIQB];
256	u_int32_t	lriqb[NIQB];
257	char		name[8];
258	u_int32_t	falc_irq, falc_state, framer_state;
259	struct schan *ch[M32_CHAN];
260	char	nodename[NG_NODESIZ];
261	node_p	node;
262
263	u_long		cnt_fec;
264	u_long		cnt_cvc;
265	u_long		cnt_cec1;
266	u_long		cnt_ebc;
267	u_long		cnt_cec2;
268	u_long		cnt_cec3;
269	u_long		cnt_rbc;
270};
271
272static int
273ngmn_constructor(node_p node)
274{
275
276	return (EINVAL);
277}
278
279static int
280ngmn_shutdown(node_p nodep)
281{
282
283	return (EINVAL);
284}
285
286static void
287ngmn_config(node_p node, char *set, char *ret)
288{
289	struct mn_softc *sc;
290	enum framing wframing;
291
292	sc = NG_NODE_PRIVATE(node);
293
294	if (set != NULL) {
295		if (!strncmp(set, "line ", 5)) {
296			wframing = sc->framing;
297			if (!strcmp(set, "line e1")) {
298				wframing = E1;
299			} else if (!strcmp(set, "line e1u")) {
300				wframing = E1U;
301			} else {
302				strcat(ret, "ENOGROK\n");
303				return;
304			}
305			if (wframing == sc->framing)
306				return;
307			if (sc->nhooks > 0) {
308				sprintf(ret, "Cannot change line when %d hooks open\n", sc->nhooks);
309				return;
310			}
311			sc->framing = wframing;
312#if 1
313			f54_init(sc);
314#else
315			mn_reset(sc);
316#endif
317		} else {
318			printf("%s CONFIG SET [%s]\n", sc->nodename, set);
319			strcat(ret, "ENOGROK\n");
320			return;
321		}
322	}
323
324}
325
326static int
327ngmn_rcvmsg(node_p node, item_p item, hook_p lasthook)
328{
329	struct mn_softc *sc;
330	struct ng_mesg *resp = NULL;
331	struct schan *sch;
332	char *s, *r;
333	int pos, i;
334	struct ng_mesg *msg;
335
336	NGI_GET_MSG(item, msg);
337	sc = NG_NODE_PRIVATE(node);
338
339	if (msg->header.typecookie != NGM_GENERIC_COOKIE) {
340		NG_FREE_ITEM(item);
341		NG_FREE_MSG(msg);
342		return (EINVAL);
343	}
344
345	if (msg->header.cmd != NGM_TEXT_CONFIG &&
346	    msg->header.cmd != NGM_TEXT_STATUS) {
347		NG_FREE_ITEM(item);
348		NG_FREE_MSG(msg);
349		return (EINVAL);
350	}
351
352	NG_MKRESPONSE(resp, msg, sizeof(struct ng_mesg) + NG_TEXTRESPONSE,
353	    M_NOWAIT);
354	if (resp == NULL) {
355		NG_FREE_ITEM(item);
356		NG_FREE_MSG(msg);
357		return (ENOMEM);
358	}
359
360	if (msg->header.arglen)
361		s = (char *)msg->data;
362	else
363		s = NULL;
364	r = (char *)resp->data;
365	*r = '\0';
366
367	if (msg->header.cmd == NGM_TEXT_CONFIG) {
368		ngmn_config(node, s, r);
369		resp->header.arglen = strlen(r) + 1;
370		NG_RESPOND_MSG(i, node, item, resp);
371		NG_FREE_MSG(msg);
372		return (0);
373	}
374	pos = 0;
375	pos += sprintf(pos + r,"Framer status %b;\n", sc->framer_state, "\20"
376	    "\40LOS\37AIS\36LFA\35RRA"
377	    "\34AUXP\33NMF\32LMFA\31frs0.0"
378	    "\30frs1.7\27TS16RA\26TS16LOS\25TS16AIS"
379	    "\24TS16LFA\23frs1.2\22XLS\21XLO"
380	    "\20RS1\17rsw.6\16RRA\15RY0"
381	    "\14RY1\13RY2\12RY3\11RY4"
382	    "\10SI1\7SI2\6rsp.5\5rsp.4"
383	    "\4rsp.3\3RSIF\2RS13\1RS15");
384	pos += sprintf(pos + r,"    Framing errors: %lu", sc->cnt_fec);
385	pos += sprintf(pos + r,"  Code Violations: %lu\n", sc->cnt_cvc);
386
387	pos += sprintf(pos + r,"    Falc State %b;\n", sc->falc_state, "\20"
388	    "\40LOS\37AIS\36LFA\35RRA"
389	    "\34AUXP\33NMF\32LMFA\31frs0.0"
390	    "\30frs1.7\27TS16RA\26TS16LOS\25TS16AIS"
391	    "\24TS16LFA\23frs1.2\22XLS\21XLO"
392	    "\20RS1\17rsw.6\16RRA\15RY0"
393	    "\14RY1\13RY2\12RY3\11RY4"
394	    "\10SI1\7SI2\6rsp.5\5rsp.4"
395	    "\4rsp.3\3RSIF\2RS13\1RS15");
396	pos += sprintf(pos + r, "    Falc IRQ %b\n", sc->falc_irq, "\20"
397	    "\40RME\37RFS\36T8MS\35RMB\34CASC\33CRC4\32SA6SC\31RPF"
398	    "\30b27\27RDO\26ALLS\25XDU\24XMB\23b22\22XLSC\21XPR"
399	    "\20FAR\17LFA\16MFAR\15T400MS\14AIS\13LOS\12RAR\11RA"
400	    "\10ES\7SEC\6LMFA16\5AIS16\4RA16\3API\2SLN\1SLP");
401	for (i = 0; i < M32_CHAN; i++) {
402		if (!sc->ch[i])
403			continue;
404		sch = sc->ch[i];
405
406		pos += sprintf(r + pos, "  Chan %d <%s> ",
407		    i, NG_HOOK_NAME(sch->hook));
408
409		pos += sprintf(r + pos, "  Last Rx: ");
410		if (sch->last_recv)
411			pos += sprintf(r + pos, "%lu s",
412			    (unsigned long)(time_second - sch->last_recv));
413		else
414			pos += sprintf(r + pos, "never");
415
416		pos += sprintf(r + pos, ", last RxErr: ");
417		if (sch->last_rxerr)
418			pos += sprintf(r + pos, "%lu s",
419			    (unsigned long)(time_second - sch->last_rxerr));
420		else
421			pos += sprintf(r + pos, "never");
422
423		pos += sprintf(r + pos, ", last Tx: ");
424		if (sch->last_xmit)
425			pos += sprintf(r + pos, "%lu s\n",
426			    (unsigned long)(time_second - sch->last_xmit));
427		else
428			pos += sprintf(r + pos, "never\n");
429
430		pos += sprintf(r + pos, "    RX error(s) %lu", sch->rx_error);
431		pos += sprintf(r + pos, " Short: %lu", sch->short_error);
432		pos += sprintf(r + pos, " CRC: %lu", sch->crc_error);
433		pos += sprintf(r + pos, " Mod8: %lu", sch->dribble_error);
434		pos += sprintf(r + pos, " Long: %lu", sch->long_error);
435		pos += sprintf(r + pos, " Abort: %lu", sch->abort_error);
436		pos += sprintf(r + pos, " Overflow: %lu\n", sch->overflow_error);
437
438		pos += sprintf(r + pos, "    Last error: %b  Prev error: %b\n",
439		    sch->last_error, "\20\7SHORT\5CRC\4MOD8\3LONG\2ABORT\1OVERRUN",
440		    sch->prev_error, "\20\7SHORT\5CRC\4MOD8\3LONG\2ABORT\1OVERRUN");
441		pos += sprintf(r + pos, "    Xmit bytes pending %ld\n",
442		    sch->tx_pending);
443	}
444	resp->header.arglen = pos + 1;
445
446	/* Take care of synchronous response, if any */
447	NG_RESPOND_MSG(i, node, item, resp);
448	NG_FREE_MSG(msg);
449	return (0);
450}
451
452static int
453ngmn_newhook(node_p node, hook_p hook, const char *name)
454{
455	u_int32_t ts, chan;
456	struct mn_softc *sc;
457	int nbit;
458
459	sc = NG_NODE_PRIVATE(node);
460
461	if (name[0] != 't' || name[1] != 's')
462		return (EINVAL);
463
464	ts = mn_parse_ts(name + 2, &nbit);
465	printf("%d bits %x\n", nbit, ts);
466	if (sc->framing == E1 && (ts & 1))
467		return (EINVAL);
468	if (sc->framing == E1U && nbit != 32)
469		return (EINVAL);
470	if (ts == 0)
471		return (EINVAL);
472	if (sc->framing == E1)
473		chan = ffs(ts) - 1;
474	else
475		chan = 1;
476	if (!sc->ch[chan])
477		mn_create_channel(sc, chan);
478	else if (sc->ch[chan]->state == UP)
479		return (EBUSY);
480	sc->ch[chan]->ts = ts;
481	sc->ch[chan]->hook = hook;
482	sc->ch[chan]->tx_limit = nbit * 8;
483	NG_HOOK_SET_PRIVATE(hook, sc->ch[chan]);
484	sc->nhooks++;
485	return(0);
486}
487
488
489static struct trxd *mn_desc_free;
490
491static struct trxd *
492mn_alloc_desc(void)
493{
494	struct trxd *dp;
495
496	dp = mn_desc_free;
497	if (dp)
498		mn_desc_free = dp->vnext;
499	else
500		dp = (struct trxd *)malloc(sizeof *dp, M_MN, M_NOWAIT);
501	return (dp);
502}
503
504static void
505mn_free_desc(struct trxd *dp)
506{
507	dp->vnext =  mn_desc_free;
508	mn_desc_free = dp;
509}
510
511static u_int32_t
512mn_parse_ts(const char *s, int *nbit)
513{
514	unsigned r;
515	int i, j;
516	char *p;
517
518	r = 0;
519	j = -1;
520	*nbit = 0;
521	while(*s) {
522		i = strtol(s, &p, 0);
523		if (i < 0 || i > 31)
524			return (0);
525		while (j != -1 && j < i) {
526			r |= 1 << j++;
527			(*nbit)++;
528		}
529		j = -1;
530		r |= 1 << i;
531		(*nbit)++;
532		if (*p == ',') {
533			s = p + 1;
534			continue;
535		} else if (*p == '-') {
536			j = i + 1;
537			s = p + 1;
538			continue;
539		} else if (!*p) {
540			break;
541		} else {
542			return (0);
543		}
544	}
545	return (r);
546}
547
548#ifdef notyet
549static void
550mn_fmt_ts(char *p, u_int32_t ts)
551{
552	char *s;
553	int j;
554
555	s = "";
556	ts &= 0xffffffff;
557	for (j = 0; j < 32; j++) {
558		if (!(ts & (1 << j)))
559			continue;
560		sprintf(p, "%s%d", s, j);
561		p += strlen(p);
562		s = ",";
563		if (!(ts & (1 << (j+1))))
564			continue;
565		for (; j < 32; j++)
566			if (!(ts & (1 << (j+1))))
567				break;
568		sprintf(p, "-%d", j);
569		p += strlen(p);
570		s = ",";
571	}
572}
573#endif /* notyet */
574
575/*
576 * OUTPUT
577 */
578
579static int
580ngmn_rcvdata(hook_p hook, item_p item)
581{
582	struct mbuf  *m2;
583	struct trxd *dp, *dp2;
584	struct schan *sch;
585	struct mn_softc *sc;
586	int chan, pitch, len;
587	struct mbuf *m;
588
589	sch = NG_HOOK_PRIVATE(hook);
590	sc = sch->sc;
591	chan = sch->chan;
592
593	if (sch->state != UP) {
594		NG_FREE_ITEM(item);
595		return (0);
596	}
597	NGI_GET_M(item, m);
598	if (sch->tx_pending + m->m_pkthdr.len > sch->tx_limit * mn_maxlatency) {
599		NG_FREE_M(m);
600		NG_FREE_ITEM(item);
601		return (0);
602	}
603	NG_FREE_ITEM(item);
604	pitch = 0;
605	m2 = m;
606	dp2 = sc->ch[chan]->xl;
607	len = m->m_pkthdr.len;
608	while (len) {
609		dp = mn_alloc_desc();
610		if (!dp) {
611			pitch++;
612			m_freem(m);
613			sc->ch[chan]->xl = dp2;
614			dp = dp2->vnext;
615			while (dp) {
616				dp2 = dp->vnext;
617				mn_free_desc(dp);
618				dp = dp2;
619			}
620			sc->ch[chan]->xl->vnext = NULL;
621			break;
622		}
623		dp->data = vtophys(m2->m_data);
624		dp->flags = m2->m_len << 16;
625		dp->flags += 1;
626		len -= m2->m_len;
627		dp->next = vtophys(dp);
628		dp->vnext = NULL;
629		sc->ch[chan]->xl->next = vtophys(dp);
630		sc->ch[chan]->xl->vnext = dp;
631		sc->ch[chan]->xl = dp;
632		if (!len) {
633			dp->m = m;
634			dp->flags |= 0xc0000000;
635			dp2->flags &= ~0x40000000;
636		} else {
637			dp->m = NULL;
638			m2 = m2->m_next;
639		}
640	}
641	if (pitch)
642		printf("%s%d: Short on mem, pitched %d packets\n",
643		    sc->name, chan, pitch);
644	else {
645#if 0
646		printf("%d = %d + %d (%p)\n",
647		    sch->tx_pending + m->m_pkthdr.len,
648		    sch->tx_pending , m->m_pkthdr.len, m);
649#endif
650		sch->tx_pending += m->m_pkthdr.len;
651		sc->m32x->txpoll &= ~(1 << chan);
652	}
653	return (0);
654}
655
656/*
657 * OPEN
658 */
659static int
660ngmn_connect(hook_p hook)
661{
662	int i, nts, chan;
663	struct trxd *dp, *dp2;
664	struct mbuf *m;
665	struct mn_softc *sc;
666	struct schan *sch;
667	u_int32_t u;
668
669	sch = NG_HOOK_PRIVATE(hook);
670	chan = sch->chan;
671	sc = sch->sc;
672
673	if (sch->state == UP)
674		return (0);
675	sch->state = UP;
676
677	/* Count and configure the timeslots for this channel */
678	for (nts = i = 0; i < 32; i++)
679		if (sch->ts & (1 << i)) {
680			sc->m32_mem.ts[i] = 0x00ff00ff |
681				(chan << 24) | (chan << 8);
682			nts++;
683		}
684
685	/* Init the receiver & xmitter to HDLC */
686	sc->m32_mem.cs[chan].flags = 0x80e90006;
687	/* Allocate two buffers per timeslot */
688	if (nts == 32)
689		sc->m32_mem.cs[chan].itbs = 63;
690	else
691		sc->m32_mem.cs[chan].itbs = nts * 2;
692
693	/* Setup a transmit chain with one descriptor */
694	/* XXX: we actually send a 1 byte packet */
695	dp = mn_alloc_desc();
696	MGETHDR(m, M_WAITOK, MT_DATA);
697	m->m_pkthdr.len = 0;
698	dp->m = m;
699	dp->flags = 0xc0000000 + (1 << 16);
700	dp->next = vtophys(dp);
701	dp->vnext = NULL;
702	dp->data = vtophys(sc->name);
703	sc->m32_mem.cs[chan].tdesc = vtophys(dp);
704	sc->ch[chan]->x1 = dp;
705	sc->ch[chan]->xl = dp;
706
707	/* Setup a receive chain with 5 + NTS descriptors */
708
709	dp = mn_alloc_desc();
710	m = NULL;
711	MGETHDR(m, M_WAITOK, MT_DATA);
712	MCLGET(m, M_WAITOK);
713	dp->m = m;
714	dp->data = vtophys(m->m_data);
715	dp->flags = 0x40000000;
716	dp->flags += 1600 << 16;
717	dp->next = vtophys(dp);
718	dp->vnext = NULL;
719	sc->ch[chan]->rl = dp;
720
721	for (i = 0; i < (nts + 10); i++) {
722		dp2 = dp;
723		dp = mn_alloc_desc();
724		m = NULL;
725		MGETHDR(m, M_WAITOK, MT_DATA);
726		MCLGET(m, M_WAITOK);
727		dp->m = m;
728		dp->data = vtophys(m->m_data);
729		dp->flags = 0x00000000;
730		dp->flags += 1600 << 16;
731		dp->next = vtophys(dp2);
732		dp->vnext = dp2;
733	}
734	sc->m32_mem.cs[chan].rdesc = vtophys(dp);
735	sc->ch[chan]->r1 = dp;
736
737	/* Initialize this channel */
738	sc->m32_mem.ccb = 0x00008000 + (chan << 8);
739	sc->m32x->cmd = 0x1;
740	DELAY(1000);
741	u = sc->m32x->stat;
742	if (!(u & 1))
743		printf("%s: init chan %d stat %08x\n", sc->name, chan, u);
744	sc->m32x->stat = 1;
745	/* probably not at splnet, force outward queueing */
746	NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
747
748	return (0);
749}
750
751/*
752 * CLOSE
753 */
754static int
755ngmn_disconnect(hook_p hook)
756{
757	int chan, i;
758	struct mn_softc *sc;
759	struct schan *sch;
760	struct trxd *dp, *dp2;
761	u_int32_t u;
762
763	sch = NG_HOOK_PRIVATE(hook);
764	chan = sch->chan;
765	sc = sch->sc;
766
767	if (sch->state == DOWN)
768		return (0);
769	sch->state = DOWN;
770
771	/* Set receiver & transmitter off */
772	sc->m32_mem.cs[chan].flags = 0x80920006;
773	sc->m32_mem.cs[chan].itbs = 0;
774
775	/* free the timeslots */
776	for (i = 0; i < 32; i++)
777		if (sc->ch[chan]->ts & (1 << i))
778			sc->m32_mem.ts[i] = 0x20002000;
779
780	/* Initialize this channel */
781	sc->m32_mem.ccb = 0x00008000 + (chan << 8);
782	sc->m32x->cmd = 0x1;
783	DELAY(30);
784	u = sc->m32x->stat;
785	if (!(u & 1))
786		printf("%s: zap chan %d stat %08x\n", sc->name, chan, u);
787	sc->m32x->stat = 1;
788
789	/* Free all receive descriptors and mbufs */
790	for (dp = sc->ch[chan]->r1; dp ; dp = dp2) {
791		if (dp->m)
792			m_freem(dp->m);
793		sc->ch[chan]->r1 = dp2 = dp->vnext;
794		mn_free_desc(dp);
795	}
796
797	/* Free all transmit descriptors and mbufs */
798	for (dp = sc->ch[chan]->x1; dp ; dp = dp2) {
799		if (dp->m) {
800			sc->ch[chan]->tx_pending -= dp->m->m_pkthdr.len;
801			m_freem(dp->m);
802		}
803		sc->ch[chan]->x1 = dp2 = dp->vnext;
804		mn_free_desc(dp);
805	}
806	sc->nhooks--;
807	return(0);
808}
809
810/*
811 * Create a new channel.
812 */
813static void
814mn_create_channel(struct mn_softc *sc, int chan)
815{
816	struct schan *sch;
817
818	sch = sc->ch[chan] = (struct schan *)malloc(sizeof *sc->ch[chan],
819	    M_MN, M_WAITOK | M_ZERO);
820	sch->sc = sc;
821	sch->state = DOWN;
822	sch->chan = chan;
823	sprintf(sch->name, "%s%d", sc->name, chan);
824	return;
825}
826
827#ifdef notyet
828/*
829 * Dump Munich32x state
830 */
831static void
832m32_dump(struct mn_softc *sc)
833{
834	u_int32_t *tp4;
835	int i, j;
836
837	printf("mn%d: MUNICH32X dump\n", sc->unit);
838	tp4 = (u_int32_t *)sc->m0v;
839	for(j = 0; j < 64; j += 8) {
840		printf("%02x", j * sizeof *tp4);
841		for(i = 0; i < 8; i++)
842			printf(" %08x", tp4[i+j]);
843		printf("\n");
844	}
845	for(j = 0; j < M32_CHAN; j++) {
846		if (!sc->ch[j])
847			continue;
848		printf("CH%d: state %d ts %08x",
849			j, sc->ch[j]->state, sc->ch[j]->ts);
850		printf("  %08x %08x %08x %08x %08x %08x\n",
851			sc->m32_mem.cs[j].flags,
852			sc->m32_mem.cs[j].rdesc,
853			sc->m32_mem.cs[j].tdesc,
854			sc->m32_mem.cs[j].itbs,
855			sc->m32_mem.crxd[j],
856			sc->m32_mem.ctxd[j] );
857	}
858}
859
860/*
861 * Dump Falch54 state
862 */
863static void
864f54_dump(struct mn_softc *sc)
865{
866	u_int8_t *tp1;
867	int i, j;
868
869	printf("%s: FALC54 dump\n", sc->name);
870	tp1 = (u_int8_t *)sc->m1v;
871	for(j = 0; j < 128; j += 16) {
872		printf("%s: %02x |", sc->name, j * sizeof *tp1);
873		for(i = 0; i < 16; i++)
874			printf(" %02x", tp1[i+j]);
875		printf("\n");
876	}
877}
878#endif /* notyet */
879
880/*
881 * Init Munich32x
882 */
883static void
884m32_init(struct mn_softc *sc)
885{
886
887	sc->m32x->conf =  0x00000000;
888	sc->m32x->mode1 = 0x81048000 + 1600; 	/* XXX: temp */
889#if 1
890	sc->m32x->mode2 = 0x00000081;
891	sc->m32x->txpoll = 0xffffffff;
892#elif 1
893	sc->m32x->mode2 = 0x00000081;
894	sc->m32x->txpoll = 0xffffffff;
895#else
896	sc->m32x->mode2 = 0x00000101;
897#endif
898	sc->m32x->lconf = 0x6060009B;
899	sc->m32x->imask = 0x00000000;
900}
901
902/*
903 * Init the Falc54
904 */
905static void
906f54_init(struct mn_softc *sc)
907{
908	sc->f54w->ipc  = 0x07;
909
910	sc->f54w->xpm0 = 0xbd;
911	sc->f54w->xpm1 = 0x03;
912	sc->f54w->xpm2 = 0x00;
913
914	sc->f54w->imr0 = 0x18; /* RMB, CASC */
915	sc->f54w->imr1 = 0x08; /* XMB */
916	sc->f54w->imr2 = 0x00;
917	sc->f54w->imr3 = 0x38; /* LMFA16, AIS16, RA16 */
918	sc->f54w->imr4 = 0x00;
919
920	sc->f54w->fmr0 = 0xf0; /* X: HDB3, R: HDB3 */
921	sc->f54w->fmr1 = 0x0e; /* Send CRC4, 2Mbit, ECM */
922	if (sc->framing == E1)
923		sc->f54w->fmr2 = 0x03; /* Auto Rem-Alarm, Auto resync */
924	else if (sc->framing == E1U)
925		sc->f54w->fmr2 = 0x33; /* dais, rtm, Auto Rem-Alarm, Auto resync */
926
927	sc->f54w->lim1 = 0xb0; /* XCLK=8kHz, .62V threshold */
928	sc->f54w->pcd =  0x0a;
929	sc->f54w->pcr =  0x15;
930	sc->f54w->xsw =  0x9f; /* fmr4 */
931	if (sc->framing == E1)
932		sc->f54w->xsp =  0x1c; /* fmr5 */
933	else if (sc->framing == E1U)
934		sc->f54w->xsp =  0x3c; /* tt0, fmr5 */
935	sc->f54w->xc0 =  0x07;
936	sc->f54w->xc1 =  0x3d;
937	sc->f54w->rc0 =  0x05;
938	sc->f54w->rc1 =  0x00;
939	sc->f54w->cmdr = 0x51;
940}
941
942static int
943mn_reset(struct mn_softc *sc)
944{
945	u_int32_t u;
946	int i;
947
948	sc->m32x->ccba = vtophys(&sc->m32_mem.csa);
949	sc->m32_mem.csa = vtophys(&sc->m32_mem.ccb);
950
951	bzero(sc->tiqb, sizeof sc->tiqb);
952	sc->m32x->tiqba = vtophys(&sc->tiqb);
953	sc->m32x->tiql = NIQB / 16 - 1;
954
955	bzero(sc->riqb, sizeof sc->riqb);
956	sc->m32x->riqba = vtophys(&sc->riqb);
957	sc->m32x->riql = NIQB / 16 - 1;
958
959	bzero(sc->ltiqb, sizeof sc->ltiqb);
960	sc->m32x->ltiqba = vtophys(&sc->ltiqb);
961	sc->m32x->ltiql = NIQB / 16 - 1;
962
963	bzero(sc->lriqb, sizeof sc->lriqb);
964	sc->m32x->lriqba = vtophys(&sc->lriqb);
965	sc->m32x->lriql = NIQB / 16 - 1;
966
967	bzero(sc->piqb, sizeof sc->piqb);
968	sc->m32x->piqba = vtophys(&sc->piqb);
969	sc->m32x->piql = NIQB / 16 - 1;
970
971	m32_init(sc);
972	f54_init(sc);
973
974	u = sc->m32x->stat;
975	sc->m32x->stat = u;
976	sc->m32_mem.ccb = 0x4;
977	sc->m32x->cmd = 0x1;
978	DELAY(1000);
979	u = sc->m32x->stat;
980	sc->m32x->stat = u;
981
982	/* set all timeslots to known state */
983	for (i = 0; i < 32; i++)
984		sc->m32_mem.ts[i] = 0x20002000;
985
986	if (!(u & 1)) {
987		printf(
988"mn%d: WARNING: Controller failed the PCI bus-master test.\n"
989"mn%d: WARNING: Use a PCI slot which can support bus-master cards.\n",
990		    sc->unit, sc->unit);
991		return  (0);
992	}
993	return (1);
994}
995
996/*
997 * FALC54 interrupt handling
998 */
999static void
1000f54_intr(struct mn_softc *sc)
1001{
1002	unsigned g, u, s;
1003
1004	g = sc->f54r->gis;
1005	u = sc->f54r->isr0 << 24;
1006	u |= sc->f54r->isr1 << 16;
1007	u |= sc->f54r->isr2 <<  8;
1008	u |= sc->f54r->isr3;
1009	sc->falc_irq = u;
1010	/* don't chat about the 1 sec heart beat */
1011	if (u & ~0x40) {
1012#if 0
1013		printf("%s*: FALC54 IRQ GIS:%02x %b\n", sc->name, g, u, "\20"
1014		    "\40RME\37RFS\36T8MS\35RMB\34CASC\33CRC4\32SA6SC\31RPF"
1015		    "\30b27\27RDO\26ALLS\25XDU\24XMB\23b22\22XLSC\21XPR"
1016		    "\20FAR\17LFA\16MFAR\15T400MS\14AIS\13LOS\12RAR\11RA"
1017		    "\10ES\7SEC\6LMFA16\5AIS16\4RA16\3API\2SLN\1SLP");
1018#endif
1019		s = sc->f54r->frs0 << 24;
1020		s |= sc->f54r->frs1 << 16;
1021		s |= sc->f54r->rsw <<  8;
1022		s |= sc->f54r->rsp;
1023		sc->falc_state = s;
1024
1025		s &= ~0x01844038;	/* undefined or static bits */
1026		s &= ~0x00009fc7;	/* bits we don't care about */
1027		s &= ~0x00780000;	/* XXX: TS16 related */
1028		s &= ~0x06000000;	/* XXX: Multiframe related */
1029#if 0
1030		printf("%s*: FALC54 Status %b\n", sc->name, s, "\20"
1031		    "\40LOS\37AIS\36LFA\35RRA\34AUXP\33NMF\32LMFA\31frs0.0"
1032		    "\30frs1.7\27TS16RA\26TS16LOS\25TS16AIS\24TS16LFA\23frs1.2\22XLS\21XLO"
1033		    "\20RS1\17rsw.6\16RRA\15RY0\14RY1\13RY2\12RY3\11RY4"
1034		    "\10SI1\7SI2\6rsp.5\5rsp.4\4rsp.3\3RSIF\2RS13\1RS15");
1035#endif
1036		if (s != sc->framer_state) {
1037#if 0
1038			for (i = 0; i < M32_CHAN; i++) {
1039				if (!sc->ch[i])
1040					continue;
1041			        sp = &sc->ch[i]->ifsppp;
1042				if (!(SP2IFP(sp)->if_flags & IFF_UP))
1043					continue;
1044				if (s)
1045					timeout((timeout_t *)sp->pp_down, sp, 1 * hz);
1046				else
1047					timeout((timeout_t *)sp->pp_up, sp, 1 * hz);
1048			}
1049#endif
1050			sc->framer_state = s;
1051		}
1052	}
1053	/* Once per second check error counters */
1054	/* XXX: not clear if this is actually ok */
1055	if (!(u & 0x40))
1056		return;
1057	sc->cnt_fec  += sc->f54r->fec;
1058	sc->cnt_cvc  += sc->f54r->cvc;
1059	sc->cnt_cec1 += sc->f54r->cec1;
1060	sc->cnt_ebc  += sc->f54r->ebc;
1061	sc->cnt_cec2 += sc->f54r->cec2;
1062	sc->cnt_cec3 += sc->f54r->cec3;
1063	sc->cnt_rbc  += sc->f54r->rbc;
1064}
1065
1066/*
1067 * Transmit interrupt for one channel
1068 */
1069static void
1070mn_tx_intr(struct mn_softc *sc, u_int32_t vector)
1071{
1072	u_int32_t chan;
1073	struct trxd *dp;
1074	struct mbuf *m;
1075
1076	chan = vector & 0x1f;
1077	if (!sc->ch[chan])
1078		return;
1079	if (sc->ch[chan]->state != UP) {
1080		printf("%s: tx_intr when not UP\n", sc->name);
1081		return;
1082	}
1083	for (;;) {
1084		dp = sc->ch[chan]->x1;
1085		if (vtophys(dp) == sc->m32_mem.ctxd[chan])
1086			return;
1087		m = dp->m;
1088		if (m) {
1089#if 0
1090			printf("%d = %d - %d (%p)\n",
1091			    sc->ch[chan]->tx_pending - m->m_pkthdr.len,
1092			    sc->ch[chan]->tx_pending , m->m_pkthdr.len, m);
1093#endif
1094			sc->ch[chan]->tx_pending -= m->m_pkthdr.len;
1095			m_freem(m);
1096		}
1097		sc->ch[chan]->last_xmit = time_second;
1098		sc->ch[chan]->x1 = dp->vnext;
1099		mn_free_desc(dp);
1100	}
1101}
1102
1103/*
1104 * Receive interrupt for one channel
1105 */
1106static void
1107mn_rx_intr(struct mn_softc *sc, u_int32_t vector)
1108{
1109	u_int32_t chan, err;
1110	struct trxd *dp;
1111	struct mbuf *m;
1112	struct schan *sch;
1113
1114	chan = vector & 0x1f;
1115	if (!sc->ch[chan])
1116		return;
1117	sch = sc->ch[chan];
1118	if (sch->state != UP) {
1119		printf("%s: rx_intr when not UP\n", sc->name);
1120		return;
1121	}
1122	vector &= ~0x1f;
1123	if (vector == 0x30000b00)
1124		sch->rx_error++;
1125	for (;;) {
1126		dp = sch->r1;
1127		if (vtophys(dp) == sc->m32_mem.crxd[chan])
1128			return;
1129		m = dp->m;
1130		dp->m = NULL;
1131		m->m_pkthdr.len = m->m_len = (dp->status >> 16) & 0x1fff;
1132		err = (dp->status >> 8) & 0xff;
1133		if (!err) {
1134			int error;
1135			NG_SEND_DATA_ONLY(error, sch->hook, m);
1136			sch->last_recv = time_second;
1137			/* we could be down by now... */
1138			if (sch->state != UP)
1139				return;
1140		} else if (err & 0x40) {
1141			sch->short_error++;
1142		} else if (err & 0x10) {
1143			sch->crc_error++;
1144		} else if (err & 0x08) {
1145			sch->dribble_error++;
1146		} else if (err & 0x04) {
1147			sch->long_error++;
1148		} else if (err & 0x02) {
1149			sch->abort_error++;
1150		} else if (err & 0x01) {
1151			sch->overflow_error++;
1152		}
1153		if (err) {
1154			sch->last_rxerr = time_second;
1155			sch->prev_error = sch->last_error;
1156			sch->last_error = err;
1157		}
1158
1159		sc->ch[chan]->r1 = dp->vnext;
1160
1161		/* Replenish desc + mbuf supplies */
1162		if (!m) {
1163			MGETHDR(m, M_NOWAIT, MT_DATA);
1164			if (m == NULL) {
1165				mn_free_desc(dp);
1166				return; /* ENOBUFS */
1167			}
1168			if (!(MCLGET(m, M_NOWAIT))) {
1169				mn_free_desc(dp);
1170				m_freem(m);
1171				return; /* ENOBUFS */
1172			}
1173		}
1174		dp->m = m;
1175		dp->data = vtophys(m->m_data);
1176		dp->flags = 0x40000000;
1177		dp->flags += 1600 << 16;
1178		dp->next = vtophys(dp);
1179		dp->vnext = NULL;
1180		sc->ch[chan]->rl->next = vtophys(dp);
1181		sc->ch[chan]->rl->vnext = dp;
1182		sc->ch[chan]->rl->flags &= ~0x40000000;
1183		sc->ch[chan]->rl = dp;
1184	}
1185}
1186
1187
1188/*
1189 * Interrupt handler
1190 */
1191
1192static void
1193mn_intr(void *xsc)
1194{
1195	struct mn_softc *sc;
1196	u_int32_t stat, lstat, u;
1197	int i, j;
1198
1199	sc = xsc;
1200	stat =  sc->m32x->stat;
1201	lstat =  sc->m32x->lstat;
1202#if 0
1203	if (!stat && !(lstat & 2))
1204		return;
1205#endif
1206
1207	if (stat & ~0xc200) {
1208		printf("%s: I stat=%08x lstat=%08x\n", sc->name, stat, lstat);
1209	}
1210
1211	if ((stat & 0x200) || (lstat & 2))
1212		f54_intr(sc);
1213
1214	for (j = i = 0; i < 64; i ++) {
1215		u = sc->riqb[i];
1216		if (u) {
1217			sc->riqb[i] = 0;
1218			mn_rx_intr(sc, u);
1219			if ((u & ~0x1f) == 0x30000800 || (u & ~0x1f) == 0x30000b00)
1220				continue;
1221			u &= ~0x30000400;	/* bits we don't care about */
1222			if ((u & ~0x1f) == 0x00000900)
1223				continue;
1224			if (!(u & ~0x1f))
1225				continue;
1226			if (!j)
1227				printf("%s*: RIQB:", sc->name);
1228			printf(" [%d]=%08x", i, u);
1229			j++;
1230		}
1231	}
1232	if (j)
1233	    printf("\n");
1234
1235	for (j = i = 0; i < 64; i ++) {
1236		u = sc->tiqb[i];
1237		if (u) {
1238			sc->tiqb[i] = 0;
1239			mn_tx_intr(sc, u);
1240			if ((u & ~0x1f) == 0x20000800)
1241				continue;
1242			u &= ~0x20000000;	/* bits we don't care about */
1243			if (!u)
1244				continue;
1245			if (!j)
1246				printf("%s*: TIQB:", sc->name);
1247			printf(" [%d]=%08x", i, u);
1248			j++;
1249		}
1250	}
1251	if (j)
1252		printf("\n");
1253	sc->m32x->stat = stat;
1254}
1255
1256/*
1257 * PCI initialization stuff
1258 */
1259
1260static int
1261mn_probe (device_t self)
1262{
1263	u_int id = pci_get_devid(self);
1264
1265	if (sizeof (struct m32xreg) != 256) {
1266		printf("MN: sizeof(struct m32xreg) = %zd, should have been 256\n", sizeof (struct m32xreg));
1267		return (ENXIO);
1268	}
1269	if (sizeof (struct f54rreg) != 128) {
1270		printf("MN: sizeof(struct f54rreg) = %zd, should have been 128\n", sizeof (struct f54rreg));
1271		return (ENXIO);
1272	}
1273	if (sizeof (struct f54wreg) != 128) {
1274		printf("MN: sizeof(struct f54wreg) = %zd, should have been 128\n", sizeof (struct f54wreg));
1275		return (ENXIO);
1276	}
1277
1278	if (id != 0x2101110a)
1279		return (ENXIO);
1280
1281	device_set_desc_copy(self, "Munich32X E1/T1 HDLC Controller");
1282	return (BUS_PROBE_DEFAULT);
1283}
1284
1285static int
1286mn_attach (device_t self)
1287{
1288	struct mn_softc *sc;
1289	u_int32_t u;
1290	u_int32_t ver;
1291	static int once;
1292	int rid, error;
1293	struct resource *res;
1294
1295	if (!once) {
1296		if (ng_newtype(&mntypestruct))
1297			printf("ng_newtype failed\n");
1298		once++;
1299	}
1300
1301	sc = (struct mn_softc *)malloc(sizeof *sc, M_MN, M_WAITOK | M_ZERO);
1302	device_set_softc(self, sc);
1303
1304	sc->dev = self;
1305	sc->unit = device_get_unit(self);
1306	sc->framing = E1;
1307	sprintf(sc->name, "mn%d", sc->unit);
1308
1309        rid = PCIR_BAR(0);
1310        res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE);
1311        if (res == NULL) {
1312                device_printf(self, "Could not map memory\n");
1313		free(sc, M_MN);
1314                return ENXIO;
1315        }
1316        sc->m0v = rman_get_virtual(res);
1317        sc->m0p = rman_get_start(res);
1318
1319        rid = PCIR_BAR(1);
1320        res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE);
1321        if (res == NULL) {
1322                device_printf(self, "Could not map memory\n");
1323		free(sc, M_MN);
1324                return ENXIO;
1325        }
1326        sc->m1v = rman_get_virtual(res);
1327        sc->m1p = rman_get_start(res);
1328
1329	/* Allocate interrupt */
1330	rid = 0;
1331	sc->irq = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
1332	    RF_SHAREABLE | RF_ACTIVE);
1333
1334	if (sc->irq == NULL) {
1335		printf("couldn't map interrupt\n");
1336		free(sc, M_MN);
1337		return(ENXIO);
1338	}
1339
1340	error = bus_setup_intr(self, sc->irq, INTR_TYPE_NET, NULL, mn_intr, sc, &sc->intrhand);
1341
1342	if (error) {
1343		printf("couldn't set up irq\n");
1344		free(sc, M_MN);
1345		return(ENXIO);
1346	}
1347
1348	u = pci_read_config(self, PCIR_COMMAND, 2);
1349	printf("%x\n", u);
1350	pci_write_config(self, PCIR_COMMAND, u | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN, 2);
1351#if 0
1352	pci_write_config(self, PCIR_COMMAND, 0x02800046, 4);
1353#endif
1354	u = pci_read_config(self, PCIR_COMMAND, 1);
1355	printf("%x\n", u);
1356
1357	ver = pci_get_revid(self);
1358
1359	sc->m32x = (struct m32xreg *) sc->m0v;
1360	sc->f54w = (struct f54wreg *) sc->m1v;
1361	sc->f54r = (struct f54rreg *) sc->m1v;
1362
1363	/* We must reset before poking at FALC54 registers */
1364	u = mn_reset(sc);
1365	if (!u)
1366		return (0);
1367
1368	printf("mn%d: Munich32X", sc->unit);
1369	switch (ver) {
1370	case 0x13:
1371		printf(" Rev 2.2");
1372		break;
1373	default:
1374		printf(" Rev 0x%x\n", ver);
1375	}
1376	printf(", Falc54");
1377	switch (sc->f54r->vstr) {
1378	case 0:
1379		printf(" Rev < 1.3\n");
1380		break;
1381	case 1:
1382		printf(" Rev 1.3\n");
1383		break;
1384	case 2:
1385		printf(" Rev 1.4\n");
1386		break;
1387	case 0x10:
1388		printf("-LH Rev 1.1\n");
1389		break;
1390	case 0x13:
1391		printf("-LH Rev 1.3\n");
1392		break;
1393	default:
1394		printf(" Rev 0x%x\n", sc->f54r->vstr);
1395	}
1396
1397	if (ng_make_node_common(&mntypestruct, &sc->node) != 0) {
1398		printf("ng_make_node_common failed\n");
1399		return (0);
1400	}
1401	NG_NODE_SET_PRIVATE(sc->node, sc);
1402	sprintf(sc->nodename, "%s%d", NG_MN_NODE_TYPE, sc->unit);
1403	if (ng_name_node(sc->node, sc->nodename)) {
1404		NG_NODE_UNREF(sc->node);
1405		return (0);
1406	}
1407
1408	return (0);
1409}
1410
1411
1412static device_method_t mn_methods[] = {
1413        /* Device interface */
1414        DEVMETHOD(device_probe,         mn_probe),
1415        DEVMETHOD(device_attach,        mn_attach),
1416        DEVMETHOD(device_suspend,       bus_generic_suspend),
1417        DEVMETHOD(device_resume,        bus_generic_resume),
1418        DEVMETHOD(device_shutdown,      bus_generic_shutdown),
1419
1420	DEVMETHOD_END
1421};
1422
1423static driver_t mn_driver = {
1424        "mn",
1425        mn_methods,
1426        0
1427};
1428
1429static devclass_t mn_devclass;
1430
1431DRIVER_MODULE(mn, pci, mn_driver, mn_devclass, 0, 0);
1432